| http://www.w3.org/ns/prov#value | - Further, the company offers material processing and refinement products, including selenium and tellurium metals, chemicals, and rare earth materials; thermoelectric modules (TEMs) comprising single-stage TEMs, micro TEMs, multi-stage TEMs, planar multi-stage TEMs, extended life thermocyclers, thermoelectric thermal reference sources, power generators, and thermoelectric assemblies; and silicon ca
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